Rumors of Google breaking into the wireless carrier game have been fodder for scoops, breathless reports and thinkpieces for years now, and for the longest time it looked like the search giant just couldn't make it happen. Yesterday Google put all that to rest. Project Fi is finally here (if invite-only and fully compatible with one phone) -- here's what you absolutely need to know about it.

Got a Nexus 6? Itching to dump your traditional wireless service provider for something a bit more ambitious? Google's got you covered. After months of speculation and a not-so-subtle nod from Sundar Pichai at Mobile World Congress, the search giant's new mobile phone service -- Project Fi -- is finally official. The company's plan is both as savvy and as unorthodox as we'd expect: Instead of trying to build out and maintain its own nationwide network of cell towers and repeaters, Google's instead combining Sprint and T-Mobile's coverage footprints with millions of pre-vetted WiFi hotspots to provide users with the fastest, most seamless mobile experience it can in real-time.

Well, that's the plan anyway. You're probably just clamoring for the invite link at this point (here you go), but it's important to note that Google created Fi to fill in the gaps that already exist in our more-mobile-by-the-day lives.